Concrete floor construction and mold therefor



Se t. 5, 1933. J. BRUNLE ET AL CONCRETE FLOOR CONSTRUCTION AND MOLDTHEREFOR Filed July 1931 FlG.l.

INVENTOZE)! JACOB BRUHLE. ANDREW WE G-GEN MAN ATTO ILN ELY,

Patented Sept. 5, 1933 UNITED STATES CONCRETE FLOOR CONSTRUCTION ANDMOLD THEREFOR Jacob Brunle, Brooklyn, and Andrew Weggenman, Scarsdale,N. Y.

Application July 18, 1931. Serial No. 551,610

3 Claims.

The invention relates to an incombustible rein-- forced concrete floorstructure and to a novel hollow mold member for use therein and adaptedto become an integral part of the finished fioor.

The invention has for an object the provision of a hollow metal lath orexpanded metal mold over which is poured the concrete to form a slab,and also between adjacent molds to form the joists, said hollow mold aswell having an integral portion providing a ceiling element.

A still further object of the invention resides in the provision ofmeans whereby the molds are self-locating through said ceiling-providingelement affording an upstanding spacing flange or stop for properlyspacing the adjacently disposed molds.

Anoth r object of the invention is to provide a simple mold structure inthe nature of a framework over which may be wrapped and secured metallath or expanded metal.

In carrying out the invention, a succession of parallel disposed framescovered with a paperlined metal lath or expanded metal are arranged torest upon wood forms suitably supported, and

. the portion of metal lath or expanded metal forming the bottom of suchmolds forms an integral ceiling element which may be extended beyond oneof the sides of the mold and provided at its free end with an upstandingspacing flange or stop adapted for engagement with the side of anadjacent mold.

The nature of the invention, however, will best be understood whendescribed in connection with the accompanying drawing, in which:

Fig. l is a perspective sectional view, with floor slab partly brokenaway, illustrating the novel floor structure.

Fig. 2 is a fragmentary perspective view, with portions broken away, ofthe novel mold utilized in the concrete structure shown in Fig. 1.

Fig. 3 is a fragmentary front elevation of a plurality of adjacent moldsin spaced relationship.

Referring to the drawing, the usual wood forms, as the planks 1Osuitably sustained by the supports 11, are arranged between the doorbeams, one of which is indicated at 12, the said wood forms beingdesigned for the support of a plurality of molds 13. These are arrangedto lie parallel to one another, being self-locating as hereinafter setforth, and are provided with integral ceiling portions adapted to spanthe supporting wood forms 10.

Reference being had more particularly to Figs.

2 and 3, each mold is composed of a plurality of longitudinal rods 15and transverse rods 16 outlining in cross-section a polygon as atrapezoid. These rods are welded or otherwise secured to one another toform a final more or less rigid frame-work, and over the same is wrappedand attached, as by wires 17, a metal lath as the reticulated wire cloth1% indicated; or, expanded metal may be utilized for the covering. Thislath is also preferably lined on its inner side as by a paper sheet 19,and the lath is designed to 4 cover all four sides of the frame-work,the bottom 20 affording an integral ceiling element. Furthermore, thebottom portion or ceiling-forming element 20 thereof is continued beyondone of the sides, as the side 21, to ailord an extension 22 1 which isfurther turned upwardly at its free end to provide a somewhat flexiblespacing flange or stop 23. It will be noted, also, that the bottomelement 20 and extension 22 afford a ceiling on which plaster and thelike may be applied in forms 10 with bottom element 20 and extension 22bridging the same, and are self-locating through the provision of theupstanding flange 23 which contacts with the side wall of an adjacentmold. Cap members 24 are then located over the respective ends of themolds to prevent concrete from filtering through any space between thesaid ends and a beam or wall.

The concrete is then poured in the usual manner over the molds fillingthe spaces therebetween to provide the joists 25, reinforcing rods 26having first been located in these spaces, and the pouring continued toprovide the floor slab 27 of the desired thickness.

It will be observed that in the use of molds of the constructionhereinbefore described, it is i not necessary to provide a separateceilinglath and arrange for anchoring the lath to the molds as has beenthe practice heretofore. Moreover, the concrete forming the joists 25will also serve to force the more or less flexible upstanding flange 23of a mold against the corresponding wall of the adjacent mold to insurea tight joint therebetween.

The novel mold, also, is of very light construc,

tion and thereby reduces the dead load of the floor construction withconsequent reduction in cost of columns and footings in the erection ofbuildings thus constructed. It is, furthermore, cheaper in constructionand installation thanv methods heretofore used, particularly due to theabsence of the usual independent ceiling element.

It is possible, also, to assemble the frame-work of the molds either ina shop or in the field, and. the same may also readily be madecollapsible to reduce freight charges and storage space.

We claim:

1. A combined ceiling and floor mold, comprising a plurality oflongitudinal and transverse rods secured to one another as a successionof integrally connected polygons, and metal lath secured over the rods,the bottom portion thereof being extended beyond one of the sides withthe free end thereof turned upwardly to afiord a spacing flange or stopfor an adjacent mold.

2. A combined ceiling and floor mold, comprising a skeleton frame memberembodying a succession of integrally connected polygons, and a hollowmetal lath, member wrapped thereover and secured thereto, with thebottom portion extended beyond one of the sides of the frame to affordan integral bottom ceiling element.

3. A combined ceiling and floor mold, comprising a plurality oflongitudinal and transverse rods secured to one another as a successionof connected polygons, and metal lath secured over the rods, the bottomportion thereof being extended beyond one of the sides to afford anintegral bottom ceiling element.

JACOB BRUNLE. ANDREW WEGGENMAN.

